Results 31 to 40 of about 25,462,538 (288)

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

FEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

The "Excelsior" H2020 Widespread Teaming Phase 2 Project: ERATOSTHENES: EXcellence Research Centre for Earth SurveiLlance and Space-Based MonItoring Of the EnviRonment [PDF]

, 2020
The EXCELSIOR project aims to upgrade the existing ERATOSTHENES Research Centre established within the Cyprus University of Technology into a sustainable, viable and autonomous ERATOSTHENES Centre of Excellence (ECoE) for Earth Surveillance and Space ...
Mettas, Christodoulos, Neocleous, Kyriacos, Papoutsis, Ioannis, Hadjimitsis, Diofantos G., Schwarz, Egbert, Nisantzi, Argyro, Kontoes, Haris, Mamouri, Rodanthi-Elisavet, Komodromos, Giorgos, Ansman, Albert, Themistocleous, Kyriacos, Schreier, Gunter, Danezis, Chris, Bühl, Johannes, Tziortzis, Stelios, Papoutsa, Christiana, Tzouvaras, Marios, Michaelides, Silas   +17 more
core   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Space Target Recognition of Radar Cross-Section Sequence Based on Transformer

Mathematics
As the strategic importance of space continues to grow, space target recognition technology is critical for advancing space surveillance systems, optimizing the use of space resources, and ensuring space security.
Meng Xie, Weiwei Wu, Chenchen Fu, Sujunjie Sun   +3 more
doaj   +1 more source

A system design for space-based space surveillance [PDF]

, 2014
This paper presents the capabilities of a Space-Based Space Surveillance (SBSS) demonstration mission for Space Surveillance and Tracking (SST) based on a micro- satellite platform. The results have been produced in the frame of ESA’s "As sessment Study
Utzmann, J., Wagner, A., Teston, F., Schildknecht, Thomas, Willemsen, P., Flohrer, T., Silha, Jiri   +6 more
core  

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

A PCA-SVM Regression Model for LEO Space Debris Orbit Prediction in an Optical Space-Based Space Surveillance Network

IEEE Access
The primary objective of this study is to investigate the efficacy of Support Vector Machine (SVM) regression method to enhance the accuracy of Low Earth Orbit (LEO) space debris orbit prediction using the historical data.
Sara Hamidian, Amir Reza Kosari
doaj   +1 more source

Research on resource scheduling for space target surveillance based on equipment load balancing rules [PDF]

Zhihui kongzhi yu fangzhen
A scheduling method based on equipment load balancing rules is proposed to solve the problem of unbalanced load of each observing device in traditional space target monitoring resource scheduling.
WEN Yanhe, XU Can, WANG Chen, MA Teng, LI Peng, LI Pengju
doaj   +1 more source

LEO Mega Constellations: Review of Development, Impact, Surveillance, and Governance

Space: Science & Technology, 2022
The rapid development of Low Earth Orbit (LEO) mega constellations has significantly contributed to several aspects of human scientific progress, such as communication, navigation, and remote sensing.
Jingrui Zhang, Yifan Cai, Chenbao Xue, Zhirun Xue, Han Cai   +4 more
doaj   +1 more source

Preoperative circulating tumor cells integrated with imaging analysis for prognostic evaluation in head and neck squamous cell carcinoma

Molecular Oncology, EarlyView.
Detecting circulating tumor cells (CTCs) in blood before surgery may help predict outcomes in patients with head and neck squamous cell carcinoma (HNSCC). Here, we show when combined with tumor size and lymph node involvement from routine imaging, CTC status identifies high‐risk patients with poorer survival—offering a simple, minimally invasive tool ...
Susanne Flach, Gizem Abaci, Tom Huberty, Axel Lechner, Lukas Käsmann, Jens Ricke, Sophia Stöcklein, Martin Canis, Philipp Baumeister, Marianna Alunni‐Fabbroni   +9 more
wiley   +1 more source